[INFO] fetching crate io-streams 0.1.0...
[INFO] checking io-streams-0.1.0 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863
[INFO] extracting crate io-streams 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate io-streams 0.1.0 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate io-streams 0.1.0
[INFO] finished tweaking crates.io crate io-streams 0.1.0
[INFO] tweaked toml for crates.io crate io-streams 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate io-streams 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded system-interface v0.6.0
[INFO] [stderr]   Downloaded layered-io v0.2.1
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] [stderr]   Downloaded duplex v0.1.0
[INFO] [stderr]   Downloaded terminal-io v0.1.0
[INFO] [stderr]   Downloaded cap-fs-ext v0.13.0
[INFO] [stderr]   Downloaded char-device v0.1.0
[INFO] [stderr]   Downloaded cap-tempfile v0.13.0
[INFO] [stderr]   Downloaded socketpair v0.4.0
[INFO] [stderr]   Downloaded cap-std v0.13.0
[INFO] [stderr]   Downloaded cap-primitives v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f179042e9059765123b9c3564d891e234c7ac25fe087d91d0dfa273340dc4df
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8f179042e9059765123b9c3564d891e234c7ac25fe087d91d0dfa273340dc4df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f179042e9059765123b9c3564d891e234c7ac25fe087d91d0dfa273340dc4df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f179042e9059765123b9c3564d891e234c7ac25fe087d91d0dfa273340dc4df", kill_on_drop: false }`
[INFO] [stdout] 8f179042e9059765123b9c3564d891e234c7ac25fe087d91d0dfa273340dc4df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 365b79470522d4a8efba04cf3a61804ecfcb2d87a6b3be6a981122fb4be1895a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "365b79470522d4a8efba04cf3a61804ecfcb2d87a6b3be6a981122fb4be1895a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking posish v0.5.10
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling unsafe-io v0.3.0
[INFO] [stderr]    Compiling char-device v0.1.0
[INFO] [stderr]    Compiling cap-primitives v0.13.0
[INFO] [stderr]    Compiling system-interface v0.6.0
[INFO] [stderr]    Compiling cap-std v0.13.0
[INFO] [stderr]    Compiling io-streams v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking fs-set-times v0.2.3
[INFO] [stderr]     Checking duplex v0.1.0
[INFO] [stderr]     Checking cap-tempfile v0.13.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.48s
[INFO] running `Command { std: "docker" "inspect" "365b79470522d4a8efba04cf3a61804ecfcb2d87a6b3be6a981122fb4be1895a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365b79470522d4a8efba04cf3a61804ecfcb2d87a6b3be6a981122fb4be1895a", kill_on_drop: false }`
[INFO] [stdout] 365b79470522d4a8efba04cf3a61804ecfcb2d87a6b3be6a981122fb4be1895a